[1]赵艮春,庄其仁,陈唐荣,等.涡旋光束嵌套高斯光束在湍流大气中的传输[J].华侨大学学报(自然科学版),2013,34(1):18-21.[doi:10.11830/ISSN.1000-5013.2013.01.0018]
　ZHAO Gen-chun,ZHUANG Qi-ren,CHEN Tang-rong,et al.Transmission of Vortex Beams Nested Gaussian Beams in Turbulent Atmosphere[J].Journal of Huaqiao University(Natural Science),2013,34(1):18-21.[doi:10.11830/ISSN.1000-5013.2013.01.0018]
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涡旋光束嵌套高斯光束在湍流大气中的传输()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第34卷
期数:
2013年第1期
页码:
18-21
栏目:
出版日期:
2013-01-20

文章信息/Info

Title:
Transmission of Vortex Beams Nested Gaussian Beams in Turbulent Atmosphere
文章编号:
1000-5013(2013)01-0018-04
作者:
赵艮春;  庄其仁;  陈唐荣;  戴文海
华侨大学 信息科学与工程学院, 福建 厦门 361021
Author(s):
ZHAO Gen-chun;  ZHUANG Qi-ren;  CHEN Tang-rong;  DAI Wen-hai
College of Information Science and Engineering, Huaqiao University, Xiamen 361021, China
关键词:
涡旋光束;  高斯光束;  湍流大气;  像差;  散焦;  像散
Keywords:
vortex beam;  gaussian beam;  turbulent atmosphere;  aberration;  defocus;  astigmatism
分类号:
O435.1
DOI:
10.11830/ISSN.1000-5013.2013.01.0018
文献标志码:
A
摘要:
研究大气湍流波像差中的散焦和像散两种低阶像差对聚焦涡旋光束嵌套高斯光束焦面光强的影响,并用数值模拟的方法分析接收焦面平均光强分布随光束聚焦距离、拓扑荷数、湍流强度等参数的变化特性.结果表明: 随着传输距离和大气折射率结构常数的增大,复合光束焦面光强峰值降低,光斑半径增大,光斑漂移现象明显,而接收焦面内的光强分布仍保持其高斯分布规律.说明涡旋光束和高斯光束经大气湍流后具有相同的强度起伏,有利于接收端的相干检测.
Abstract:
The paper investigates the effects of two low-order aberrations, i.e. atmospheric turbulence defocusing aberration and astigmatism, on the focal plane intensity of vortex beams nested Gaussian beam. The variation of the focal plane intensity with atmospheric turbulence intensity, transmission distance and the topological charge are analyzed by the numerical simulation methed. The results show that: as the transmission distance and the atmospheric refractive index structure constant increasing, the composite beam focal plane intensity peak reduced, facula radius increased, and the laser spot drift phenomenon is obvious, but the intensity distribution in the receiving focal plane still maintains its Gauss distribution law. It demonstrate that the vortex beam and Gauss beam have the same intensity fluctuation when they passing through atmospheric turbulence, therefore it is helpful to the coherent detection of the receiving end.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2012-03-02
通信作者: 庄其仁(1960-),男,教授,主要从事光纤通信与传感技术、光器件的研究.E-mail:qrzhuang@hqu.edu.cn.
基金项目: 福建省自然科学基金计划资助项目(2011J01353); 福建省科技计划项目(2007H0026)
更新日期/Last Update: 2013-01-20